Because my eyes are usually small, I looked into both eye correction and double eyelid surgery, and after visiting several places in Seomyeon and a couple of places in Centum that emphasized experience, I recently had a consultation.
The director had a somewhat blunt feeling, but there was confidence and presence to him. In other places they would just tell me to do it no matter what, but here they pointed out exactly only what was necessary and told me to choose, so I somehow felt trust. And more than anything, my friend and cousin both had successful eye correction here, so that made me trust it even more!!
There were no before-and-after photos online, but when I went in person they showed me the before-and-after photos, so it seemed fine. The staff were kind.